Colors are one of the first things people learn about in school. Well, you might have to start re-learning. At least, when it comes to one color people think is on the spectrum. Popular Mechanics ...

Sensors that utilize bacteria to monitor pollutants or nutrients in the soil have been previously made, but their functionality isn’t dependable past the lab, and practicality remains limited. This is ...

The colour purple is created by our brain using a process that shouldn't happen. When it sees red and blue, it gets confused ...